Honestly 10 billion... knock off three digits, so 10 million USD? That seems rather cheap, if these guys have the celebrity status they seem to (though I'm not clear what the time-span was. I'm assuming it's at least half a year).
Like, it would be an odd world where the highest bidder for this guy was getting offered less than an American Football star. I realize Korea may not overpay its sports players as much, but...
It does raise questions of where the guilds—which by the premise were essentially originally labour unions I thought?—but seem to be employing folks—are getting their funds, and where those funds go. And what sort of union/monopoly business, vs. regulation, is going in in-or-against the favour of the hunters' paychecks.